If I'm lifting a implement that is too heavy for my 3 point, does it cause harm or is it hard on the hydraulic lift? I was just curious. I see some implements are also labeled "cat. 1 limited." I also notice if I stall the rear hydraulics I can audibly hear what sounds like fluid being restricted or a skreeching noise. If I know it won't hurt anything, then when I'm grading driveway it would be nice to stack as much weight as possible on just to work driveway a little harder each pass.